Auxiliary oil supply apparatus for a rotating component
AssigneeROLLS-ROYCE plc
InventorsDavid A. Edwards, David P. Scothern
Life of this patent
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Abstract
An auxiliary oil supply apparatus for a rotating device (50, 51), the rotating device comprising a primary oil supply (52), a rotating component (50) and a static component (51) situated radially outwardly of a centre of rotation of the rotating component (50) and arranged to collect oil (58) held radially outwardly from the rotating component (50) as the rotating component rotates. The auxiliary oil apparatus comprises a scoop (56) associated with the rotating component (50) and is responsive to a change in a known parameter to move between a first position in the static component (51) to a second position between the static component (51) and the centre of rotation.
Claims18
An assembly comprising:
- a rotating device, comprising:
- a primary oil supply;
- a rotating component;
- and
- a static component situated radially outwardly of a center of rotation of the rotating component and arranged to collect oil held radially outwardly from the rotating component as the rotating component rotates;
- an auxiliary oil apparatus for supplying oil to the rotating component, the auxiliary oil apparatus comprising:
- a scoop associated with the rotating component and responsive to a change in a known parameter to move between a first position in the static component to a second position between the static component and the center of rotation of the rotating component, wherein the known parameter is a rotational speed of the rotating component, the known parameter having two identifiable conditions, the first condition corresponding to a first rotational speed range of the rotating component and the second condition corresponding to a second rotational speed range of the rotating component.
An assembly comprising:
- a rotating device comprising:
- a primary oil supply;
- a rotating component;
- and
- a static component situated radially outwardly of a center of rotation of the rotating component and arranged to collect oil held radially outwardly from the rotating component as the rotating component rotates;
- an auxiliary oil apparatus for supplying oil to the rotating component, the auxiliary oil apparatus comprising:
- a scoop associated with the rotating component and responsive to a change in a known parameter to move between a first position in the static component to a second position between the static component and the center of rotation, wherein the known parameter is the pressure of oil in the primary oil supply, the known parameter having two identifiable conditions, the first condition corresponding to a first oil pressure range in the primary oil supply and the second condition corresponding to a second oil pressure range in the primary oil supply.
Dependencies are inferred from the claim text.